干旱区生态环境知识资源中心(Arid): 新疆年降水量的时空变化特征

Arid

	新疆年降水量的时空变化特征
其他题名	Characteristics of Temporal and Spatial Distributions of Annual Precipitation in Xinjiang
	辛渝 1; 陈洪武 1; 张广兴 2; 张新 3; 卢戈 3; 博力健 3
ISSN	1000-0534
出版年	2008
卷号	27 期号:5 页码:993-1003
中文摘要	根据新疆19612005年88个气象站点的年降水量资料，采用气候趋势系数、Kendalltau检验、REOF／RPCA、Morlet小波分析以及交叉谱分析等方法，分析了新疆年降水量的变化趋势，并对年降水量场进行客观分区。新疆年降水量场可划分为6个子区域：北疆西部及北疆沿天山型、中天山及吐鲁番盆地型、南疆西部型、北疆北部及东天山型、塔里木盆地型、南疆东南部型。在此基础上，研究了新疆年降水量变化的区域特征和年代际、年际变化的多时间尺度的周期特征，并分析了各子气候区平均年降水量变化之间的相关关系。结果表明，新疆大部分区域最干旱时段在1960--1970年代。1980年代以来，除沙漠盆地外，新疆年降水不同程度地呈现出显著增加趋势。新疆各子气候区平均年降水量的年代际或年际周期变化并非均相同，而且具有显著的8年准耦合振荡。北疆西部沿天山与中天山在多个频域段上具有显著的耦合振荡，其次是与北疆北部及东天山也具有较好的耦合振荡，与南疆西部具有显著的5，6年的反位相耦合振荡，与塔里木盆地仅在6年周期中具有显著的反位相耦合关系。除6年的耦合振荡外，新疆年降水量自然气候分区的异常变化大多从北向南，从西向东依次出现。
英文摘要	Based on the annual precipitation data at 88 representative meteorological stations in Xinjiang during 1961--2005, using the method of linear tendency coefficient, Kendall-tau test, REOF/RPCA, wavelet analysis of rootlet and cross spectrum analysis, the change trend of annual precipitation was studied and annual precipitation fields can be divided into the six regions： The West of Northern Xinjiang along the Tianshan Mountains, the Middle Tianshan accompanying Tulufan Basin, the West of Southern Xinjiang, the North of Northern Xinjiang, the Tarirn Basin and the Southeast of Southern Xinjiang. On the basis of this, the regional change features of annual precipitation were analyzed as well as the multiple periodic in decadal and interdecadal, and the annual precipitation correlations among different sub-regions. The results are revealed as fellows： It was the driest in the 1960＇s and 1970＇s in Xinjiang. From the 1980＇s, an increasing annual rainfall trend, more and less, appeared except desert basin. Neither the decadal nor interdecadal period of annual precipitation is always the same in the different sub-region. There exists a quasi-coupling oscillation of significant 6 years. There are outstanding coupling oscillations between the west of Northern Xinjiang and the middle Tianshan Mountains in many frequency ranges, and along with the north of northern Xinjiang including eastern Tianshan Mountains secondarily. The west of Northern Xinjiang processes striking five and six years reverse phase oscillations with the west of Southern Xinjiang, and six years adverse phase oscillation with the Tarim Basin. Except for the six year coupling oscillation, the abnormal change of annual precipitation in most sub-regions of Xinjiang appeared from north to south or from west to east in turn.
中文关键词	年降水量 ; 时空变化特征 ; 旋转主因子方法 ; Morlet小波分析 ; 交叉谱分析
英文关键词	Annual precipitation Features of temporal and spatial changes Rotated EOF Wavelet analysis of Morlet Cross spectrum analysis
语种	中文
国家	中国
收录类别	CSCD
WOS类目	METEOROLOGY ATMOSPHERIC SCIENCES
WOS研究方向	Meteorology & Atmospheric Sciences
CSCD记录号	CSCD:3453192
来源机构	中国气象局乌鲁木齐沙漠气象研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/222476
作者单位	1.新疆气候中心, 乌鲁木齐, 新疆 830002, 中国; 2.中国气象局乌鲁木齐沙漠气象研究所, 乌鲁木齐, 新疆 830002, 中国; 3.新疆博州气象局, 博乐, 新疆 833400, 中国
推荐引用方式 GB/T 7714	辛渝,陈洪武,张广兴,等. 新疆年降水量的时空变化特征[J]. 中国气象局乌鲁木齐沙漠气象研究所,2008,27(5):993-1003.
APA	辛渝,陈洪武,张广兴,张新,卢戈,&博力健.(2008).新疆年降水量的时空变化特征.,27(5),993-1003.
MLA	辛渝,et al."新疆年降水量的时空变化特征".27.5(2008):993-1003.